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// Copyright (C) 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.server.account.externalids;
import static com.google.common.collect.ImmutableSetMultimap.toImmutableSetMultimap;
import static java.util.stream.Collectors.toList;
import com.google.auto.value.AutoValue;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableSetMultimap;
import com.google.common.collect.SetMultimap;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.server.cache.proto.Cache.AllExternalIdsProto;
import com.google.gerrit.server.cache.proto.Cache.AllExternalIdsProto.ExternalIdProto;
import com.google.gerrit.server.cache.serialize.CacheSerializer;
import com.google.gerrit.server.cache.serialize.ProtoCacheSerializers;
import com.google.gerrit.server.cache.serialize.ProtoCacheSerializers.ObjectIdConverter;
import java.util.Collection;
/** Cache value containing all external IDs. */
@AutoValue
public abstract class AllExternalIds {
static AllExternalIds create(SetMultimap<Account.Id, ExternalId> byAccount) {
return new AutoValue_AllExternalIds(
ImmutableSetMultimap.copyOf(byAccount), byEmailCopy(byAccount.values()));
}
static AllExternalIds create(Collection<ExternalId> externalIds) {
return new AutoValue_AllExternalIds(
externalIds.stream().collect(toImmutableSetMultimap(e -> e.accountId(), e -> e)),
byEmailCopy(externalIds));
}
private static ImmutableSetMultimap<String, ExternalId> byEmailCopy(
Collection<ExternalId> externalIds) {
return externalIds.stream()
.filter(e -> !Strings.isNullOrEmpty(e.email()))
.collect(toImmutableSetMultimap(e -> e.email(), e -> e));
}
public abstract ImmutableSetMultimap<Account.Id, ExternalId> byAccount();
public abstract ImmutableSetMultimap<String, ExternalId> byEmail();
enum Serializer implements CacheSerializer<AllExternalIds> {
INSTANCE;
@Override
public byte[] serialize(AllExternalIds object) {
ObjectIdConverter idConverter = ObjectIdConverter.create();
AllExternalIdsProto.Builder allBuilder = AllExternalIdsProto.newBuilder();
object.byAccount().values().stream()
.map(extId -> toProto(idConverter, extId))
.forEach(allBuilder::addExternalId);
return ProtoCacheSerializers.toByteArray(allBuilder.build());
}
private static ExternalIdProto toProto(ObjectIdConverter idConverter, ExternalId externalId) {
ExternalIdProto.Builder b =
ExternalIdProto.newBuilder()
.setKey(externalId.key().get())
.setAccountId(externalId.accountId().get());
if (externalId.email() != null) {
b.setEmail(externalId.email());
}
if (externalId.password() != null) {
b.setPassword(externalId.password());
}
if (externalId.blobId() != null) {
b.setBlobId(idConverter.toByteString(externalId.blobId()));
}
return b.build();
}
@Override
public AllExternalIds deserialize(byte[] in) {
ObjectIdConverter idConverter = ObjectIdConverter.create();
return create(
ProtoCacheSerializers.parseUnchecked(AllExternalIdsProto.parser(), in).getExternalIdList()
.stream()
.map(proto -> toExternalId(idConverter, proto))
.collect(toList()));
}
private static ExternalId toExternalId(ObjectIdConverter idConverter, ExternalIdProto proto) {
return ExternalId.create(
ExternalId.Key.parse(proto.getKey()),
new Account.Id(proto.getAccountId()),
// ExternalId treats null and empty strings the same, so no need to distinguish here.
proto.getEmail(),
proto.getPassword(),
!proto.getBlobId().isEmpty() ? idConverter.fromByteString(proto.getBlobId()) : null);
}
}
}
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